Scalar Quarkonia at Finite Temperature

Abstract

Masses and decay constants of the scalar quarkonia, ${\chi }_{Q0}(Q=b,c)$ with quantum numbers $I^G(J^{PC})=0^{+}(0^{++})$ are calculated in the framework of the QCD sum rules approach both in vacuum and finite temperature. The masses and decay constants remain unchanged up to $T\simeq 100MeV$ but they start to diminish with increasing the temperature after this point. At near the critic or deconfinement temperature, the decay constants reach approximately to 25% of their values in vacuum, while the masses are decreased about 6% and 23% for bottom and charm cases, respectively. The results at zero temperature are in a good consistency with the existing experimental values and predictions of the other nonperturbative approaches. Our predictions on the decay constants in vacuum as well as the behavior of the masses and decay constants with respect to the temperature can be checked in the future experiments.

12 Pages, 9 Figures and 2 Tables

References in corpus (18)

• The QCD Equation of State with almost Physical Quark Masses
• Thermodynamics of the QCD plasma and the large-N limit
• J/psi, psi' and Upsilon Production at Hadron Colliders: a review
• Heavy quarkonium hybrids from Coulomb gauge QCD
• Lattice QCD Calculation for the Physical Equation of State
• Holographic Approach to Finite Temperature QCD: The Case of Scalar Glueballs and Scalar Mesons
• Critical behavior of charmonia across the phase transition: A QCD sum rule approach
• The effective continuum threshold in dispersive sum rules
• Charmonium in the vector channel at finite temperature from QCD sum rules
• Extraction of ground-state decay constant from dispersive sum rules: QCD vs potential models
• Charmonium in lattice QCD and the non-relativistic quark-model
• Heavy-light quark pseudoscalar and vector mesons at finite temperature
• On the Mass and Decay Constant of $K_2^{\ast }(1430)$ Tensor Meson
• Finite Temperature Sum Rules in Lattice Gauge Theory
• Annihilation Rate of Heavy 0^{++} P-wave Quarkonium in Relativistic Salpeter Method
• Heavy ${\chi }_{Q_2}$ tensor mesons in QCD
• Two-photon width of eta_b, eta'_b and eta''_b from Heavy-Quark Spin Symmetry
• Thermal QCD Sum Rules for sigma(600) Meson

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